from __future__ import annotations

from dataclasses import dataclass

from packages.domain import Asset
from packages.ports.asset_repository import AssetRepository


@dataclass(slots=True)
class CreateAssetCommand:
    workspace_id: str
    project_id: str
    library_id: str
    name: str
    storage_key: str
    mime_type: str
    metadata: dict[str, object] | None = None


class ListAssetsUseCase:
    def __init__(self, asset_repository: AssetRepository):
        self.asset_repository = asset_repository

    def execute(self, library_id: str) -> list[Asset]:
        if not library_id.strip():
            raise ValueError("library_id 不能为空")
        return self.asset_repository.list_by_library(library_id.strip())


class CreateAssetUseCase:
    def __init__(self, asset_repository: AssetRepository):
        self.asset_repository = asset_repository

    def execute(self, command: CreateAssetCommand) -> Asset:
        asset = Asset.create(
            workspace_id=command.workspace_id,
            project_id=command.project_id,
            library_id=command.library_id,
            name=command.name,
            storage_key=command.storage_key,
            mime_type=command.mime_type,
            metadata=command.metadata,
        )
        return self.asset_repository.create(asset)